Hydraulic cylinder corrosion prevention structure

Abstract

The utility model discloses a kind of hydraulic cylinder anticorrosion structures, belong to hydraulic cylinder anticorrosion structure technical field, its technical scheme main points include protective assembly, the inside of protective assembly is bolted with hydraulic cylinder body, the rear side of hydraulic cylinder body is provided with external connection pipe, the top of hydraulic cylinder body is fixedly connected with connecting piece;The protective assembly includes protective cover, the inner wall of protective cover is fixedly connected with several auxiliary rods and the surface of hydraulic cylinder body contact, the bottom of protective cover is threadedly connected with base, the surface of protective cover is provided with receiving groove, can solve the existing hydraulic cylinder anticorrosion structure mostly in the surface of hydraulic cylinder is set corrosion-resistant sleeve, but some working environment, dust or liquid may exist, dust or liquid can possibly enter the inside of piston cavity along piston rod, dust or liquid can possibly cause corrosion to the inner wall of piston cavity, cause damage to hydraulic cylinder body.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-corrosion structure for hydraulic cylinders, and in particular to an anti-corrosion structure for hydraulic cylinders. Background Technology

[0002] Hydraulic cylinders are actuators that convert hydraulic energy into mechanical energy. They are widely used in engineering machinery, marine equipment, chemical machinery and other fields. Because their working environment may involve contact with media such as water, salt spray, oil, corrosive gases or liquids, long-term use can easily lead to corrosion, resulting in problems such as seal failure, cylinder wear, and jamming of moving parts, which in turn affect the performance and lifespan of the equipment.

[0003] To address the aforementioned issues, existing patents offer solutions. Most existing anti-corrosion structures for hydraulic cylinders involve covering the surface of the cylinder with a corrosion-resistant sleeve. However, in some working environments, dust or liquid may be present. This dust or liquid may enter the piston chamber along with the piston rod, potentially corroding the inner wall of the piston chamber and causing damage to the hydraulic cylinder body.

[0004] Therefore, a corrosion-resistant structure for hydraulic cylinders is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a corrosion-resistant structure for hydraulic cylinders, which can solve the problem that most existing corrosion-resistant structures for hydraulic cylinders simply cover the surface of the hydraulic cylinder with a corrosion-resistant sleeve. However, in some working environments, there may be dust or liquid, which may enter the piston chamber along with the piston rod and cause corrosion to the inner wall of the piston chamber, resulting in damage to the hydraulic cylinder body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant structure for a hydraulic cylinder, including a protective component, a hydraulic cylinder body bolted inside the protective component, an external pipe provided on the rear side of the hydraulic cylinder body, and a connecting piece fixedly connected to the top of the hydraulic cylinder body;

[0007] The protective assembly includes a protective cover, the inner wall of which is fixedly connected with several auxiliary rods that contact the surface of the hydraulic cylinder body, the bottom of which is threadedly connected with a base, and a storage groove is formed on the surface of the protective cover. A shield is movably connected to the surface of the storage groove, and the shield is fixedly connected to the surface of the hydraulic cylinder body.

[0008] Preferably, the top of the protective cover has two sliding grooves, and the inner walls of the two sliding grooves are slidably connected with sliding blocks. The tops of the two sliding blocks are respectively fixedly connected with a first placement frame and a second placement frame.

[0009] Preferably, the first and second placement racks each have a groove on their opposite sides, and a cleaning block is fixedly connected to the inner wall of each of the grooves.

[0010] Preferably, a scraper is fixedly connected to the top of both the first and second placement racks, and both scrapers are made of stainless steel.

[0011] Preferably, a circular sleeve is fitted on the surface of the hydraulic cylinder body, a sealing groove is formed on the front side of the inner wall of the circular sleeve, and a sealing block that cooperates with the sealing groove is fixedly connected to the front side of the outer pipe.

[0012] Preferably, the surface of the connector is covered with a corrosion-resistant sleeve, and the corrosion-resistant sleeve is made of silicone.

[0013] Preferably, the top of the base is fixedly connected to a placement pad that is bolted to the hydraulic cylinder body, and the placement pad is made of stainless steel.

[0014] Preferably, a protective sleeve is fitted onto the surface of the hydraulic cylinder body, and the protective sleeve is made of silicone.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this application, the shield moves with the piston rod to cover the gap and prevent the medium from entering the piston chamber; the first and second placement racks achieve a dual cleaning of the piston rod surface through a combination of "scraping and rubbing" via a sliding block, a cleaning block, and a stainless steel scraper.

[0017] 2. In this application, the corrosion-resistant sleeve and the silicone protective sleeve respectively isolate the connecting parts and the hydraulic cylinder body from contact with the corrosive medium; the stainless steel placement pad avoids electrochemical corrosion and disperses stress, thereby solving the problem that the existing structure cannot prevent dust and liquid from entering the piston cavity with the piston rod, resulting in corrosion of the inner wall, and comprehensively improving the corrosion resistance of the hydraulic cylinder. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the anti-corrosion structure of the hydraulic cylinder of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the protective component of this utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembled components of this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembled external pipe and hydraulic cylinder body of this utility model;

[0022] Figure 5 This is a schematic diagram of the connector and corrosion-resistant sleeve of this utility model;

[0023] Figure 6 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0024] In the diagram, 1. Protective component; 101. Protective cover; 102. Auxiliary rod; 103. Base; 104. Storage slot; 105. Shield; 2. Hydraulic cylinder body; 3. Outer pipe; 4. Connector; 5. Sliding groove; 6. Sliding block; 7. First placement rack; 8. Second placement rack; 9. Groove; 10. Cleaning block; 11. Scraper; 12. Circular sleeve; 13. Sealing groove; 14. Sealing block; 15. Corrosion-resistant sleeve; 16. Placement pad; 17. Protective sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 The present invention provides the following technical solution:

[0027] A corrosion-resistant structure for a hydraulic cylinder includes a protective component 1, a hydraulic cylinder body 2 bolted inside the protective component 1, an external pipe 3 provided on the rear side of the hydraulic cylinder body 2, and a connector 4 fixedly connected to the top of the hydraulic cylinder body 2.

[0028] The protective component 1 includes a protective cover 101. Several auxiliary rods 102 that are in contact with the surface of the hydraulic cylinder body 2 are fixedly connected to the inner wall of the protective cover 101. A base 103 is threadedly connected to the bottom of the protective cover 101. A storage groove 104 is opened on the surface of the protective cover 101. A shield 105 is movably connected to the surface of the storage groove 104. The shield 105 is fixedly connected to the surface of the hydraulic cylinder body 2.

[0029] In this embodiment: The protective component 1 houses and protects the hydraulic cylinder body 2. The external connecting pipe 3 allows for use with other devices to supply gas to the hydraulic cylinder body 2 for adjustment. The connecting piece 4 allows for bolted connection between the hydraulic cylinder body 2 and other equipment. The protective cover 101, as the core protective structure, prevents external dust, liquids, and other corrosive media from directly contacting the hydraulic cylinder body 2, forming a physical protective barrier. The auxiliary rod 102 supports the hydraulic cylinder body 2, ensuring it is aligned with the protective cover 1. The inner wall of 01 maintains a certain distance to avoid direct friction, and at the same time assists in fixing the position of the hydraulic cylinder body 2 to enhance structural stability. By setting the base 103, the bottom of the protective cover 101 is fixed by threaded connection, which facilitates disassembly and maintenance. At the same time, it provides a stable installation foundation for the hydraulic cylinder body 2 to prevent displacement caused by vibration. By setting the storage groove 104 and the shield 105, the shield 105 is movably connected to the storage groove 104 and moves synchronously with the extension and retraction of the piston rod. It can cover the gap between the piston rod and the protective cover 101 in real time to prevent dust and liquid from entering the piston cavity through the gap, thereby reducing the risk of corrosion from the source.

[0030] Specifically, such as Figure 3 , Figure 6 As shown, the top of the protective cover 101 has two sliding grooves 5, and the inner walls of the two sliding grooves 5 are slidably connected with sliding blocks 6. The tops of the two sliding blocks 6 are respectively fixedly connected with a first placement frame 7 and a second placement frame 8.

[0031] Specifically, such as Figure 3 As shown, the first placement rack 7 and the second placement rack 8 each have a groove 9 on their opposite sides, and a cleaning block 10 is fixedly connected to the inner wall of several grooves 9.

[0032] Specifically, such as Figure 3 As shown, scrapers 11 are fixedly connected to the top of both the first placement rack 7 and the second placement rack 8, and both scrapers 11 are made of stainless steel.

[0033] In this embodiment: by setting sliding grooves 5 and sliding blocks 6, the two sliding blocks 6 and the two sliding grooves 5 can respectively make the first placement frame 7 and the second placement frame 8 slide along the axial direction of the hydraulic cylinder body 2, adapting to the extension and retraction of the piston rod, and ensuring the continuity of cleaning and scraping operations. By setting the first placement frame 7 and the second placement frame 8, symmetrically set on the top of the hydraulic cylinder body 2, it is used to install the cleaning block 10 and the scraper 11. When the sliding block 6 moves, it can simultaneously clean and scrape the surface of the piston rod. By setting grooves 9 and cleaning blocks 10, the grooves 9 place the cleaning blocks 10. The material of the cleaning blocks 10 can be a flexible wear-resistant material. During the extension and retraction of the piston rod, it can wipe the dust, liquid or oil stains attached to its surface, preventing contaminants from entering the piston cavity with the piston rod and reducing the corrosion of the inner wall. By setting the scraper 11, the stainless steel material has high strength and corrosion resistance. Its edge can scrape off stubborn adhering substances on the surface of the piston rod. Together with the cleaning block 10, it achieves a dual cleaning of "scraping and wiping", further improving the corrosion resistance.

[0034] Specifically, such as Figure 4 As shown, a circular sleeve 12 is fitted on the surface of the hydraulic cylinder body 2, and a sealing groove 13 is opened on the front side of the inner wall of the circular sleeve 12. A sealing block 14 that cooperates with the sealing groove 13 is fixedly connected to the front side of the outer pipe 3.

[0035] Specifically, such as Figure 5 As shown, a corrosion-resistant sleeve 15 is fitted on the surface of the connector 4, and the corrosion-resistant sleeve 15 is made of silicone.

[0036] In this embodiment: by setting a circular sleeve 12, a sealing groove 13 and a sealing block 14, the circular sleeve 12 is fitted onto the surface of the hydraulic cylinder body 2, and the sealing block 14 is embedded in the sealing groove 13 to form a tight fit, which can prevent hydraulic oil leakage or external corrosive media from seeping into the connection between the external pipe 3 and the hydraulic cylinder body 2, and avoid corrosion and performance degradation caused by leakage. By setting a corrosion-resistant sleeve 15, the connector 4 can be wrapped to isolate the direct contact between the external corrosive media and the metal connector 4, and prevent the connector 4 from rusting and causing structural loosening or failure.

[0037] Specifically, such as Figure 2 As shown, a placement pad 16, which is bolted to the hydraulic cylinder body 2, is fixedly connected to the top of the base 103. The placement pad 16 is made of stainless steel.

[0038] Specifically, such as Figure 2 As shown, a protective sleeve 17 is fitted on the surface of the hydraulic cylinder body 2, and the protective sleeve 17 is made of silicone.

[0039] In this embodiment: By setting a placement pad 16 as the contact surface between the hydraulic cylinder body 2 and the base 103, the stainless steel material is corrosion resistant and has high strength, which can avoid electrochemical corrosion caused by direct contact between the base 103 and the hydraulic cylinder body 2, and at the same time disperse the installation stress of the hydraulic cylinder body 2, extending the service life of the base 103 and the hydraulic cylinder body 2. By setting a protective sleeve 17, the hydraulic cylinder body 2 is fully covered and wrapped to form a flexible anti-corrosion layer, which can buffer external impacts and isolate dust, liquid and cylinder metal surface from contact. It is especially suitable for high humidity and high corrosive environment, significantly improving the overall anti-corrosion performance of the hydraulic cylinder body 2.

[0040] Working principle: When the hydraulic cylinder body 2 is working, the piston rod extends and retracts, causing the shield 105 to move synchronously within the receiving groove 104, covering the gap between the protective cover 101 and the piston rod in real time, preventing dust and liquid from entering the piston chamber. The first placement rack 7 and the second placement rack 8 slide along the sliding groove 5 via the sliding block 6, moving with the piston rod. The cleaning block 10 wipes the contaminants on the piston rod surface, and the stainless steel scraper 11 scrapes away stubborn adhering substances, achieving a dual cleaning of "scraping and wiping". The sealing groove 13 of the round sleeve 12 and the sealing block 14 of the outer pipe 3 fit tightly together to prevent hydraulic oil leakage and external media infiltration. The corrosion-resistant sleeve 15 wraps the connector 4 and the protective sleeve 17, covering the surface of the hydraulic cylinder body 2 and isolating corrosive media. The base 103 fixes the protective cover 101 through a threaded connection, and the placement pad 16 supports the hydraulic cylinder body 2, dispersing stress and avoiding electrochemical corrosion, thereby comprehensively improving the corrosion resistance of the hydraulic cylinder body 2.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant structure for a hydraulic cylinder, comprising a protective component (1), characterized in that: The protective component (1) is internally bolted with a hydraulic cylinder body (2), and an external pipe (3) is provided on the rear side of the hydraulic cylinder body (2). A connector (4) is fixedly connected to the top of the hydraulic cylinder body (2). The protective component (1) includes a protective cover (101). The inner wall of the protective cover (101) is fixedly connected with a plurality of auxiliary rods (102) that contact the surface of the hydraulic cylinder body (2). The bottom of the protective cover (101) is threadedly connected with a base (103). The surface of the protective cover (101) is provided with a storage groove (104). The surface of the storage groove (104) is movably connected with a shield (105). The shield (105) is fixedly connected to the surface of the hydraulic cylinder body (2).

2. The anti-corrosion structure for a hydraulic cylinder according to claim 1, characterized in that: The top of the protective cover (101) has two sliding grooves (5), and the inner walls of the two sliding grooves (5) are slidably connected with sliding blocks (6). The tops of the two sliding blocks (6) are respectively fixedly connected with a first placement frame (7) and a second placement frame (8).

3. The anti-corrosion structure for a hydraulic cylinder according to claim 2, characterized in that: The first placement rack (7) and the second placement rack (8) each have a groove (9) on their opposite sides, and a cleaning block (10) is fixedly connected to the inner wall of each of the grooves (9).

4. The anti-corrosion structure for a hydraulic cylinder according to claim 2, characterized in that: The top of the first placement rack (7) and the second placement rack (8) are both fixedly connected with scrapers (11), and both scrapers (11) are made of stainless steel.

5. The anti-corrosion structure for a hydraulic cylinder according to claim 1, characterized in that: The surface of the hydraulic cylinder body (2) is fitted with a round sleeve (12), and a sealing groove (13) is provided on the front side of the inner wall of the round sleeve (12). A sealing block (14) that cooperates with the sealing groove (13) is fixedly connected to the front side of the outer pipe (3).

6. The anti-corrosion structure for a hydraulic cylinder according to claim 1, characterized in that: The surface of the connector (4) is covered with a corrosion-resistant sleeve (15), which is made of silicone.

7. The anti-corrosion structure for a hydraulic cylinder according to claim 1, characterized in that: The top of the base (103) is fixedly connected to a placement pad (16) that is bolted to the hydraulic cylinder body (2), and the placement pad (16) is made of stainless steel.

8. The anti-corrosion structure for a hydraulic cylinder according to claim 1, characterized in that: The surface of the hydraulic cylinder body (2) is covered with a protective sleeve (17), and the protective sleeve (17) is made of silicone.

Images